History of the Atom

Front

What charge do neutrons have?

Back

Neutrons have a neutral charge.

Front

Who developed the Atomic Theory of Matter?

Back

John Dalton developed the Atomic Theory of Matter.

Front

What charge do electrons have?

Back

Electrons have a negative charge.

Front

Which philosopher is credited with the idea of the atom (atomos)?

Back

Democritus is credited with the idea of the atom (atomos).

Front

Who discovered the nucleus through the Gold Foil experiment?

Back

Ernest Rutherford discovered the nucleus.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

What charge do protons have?

Back

Protons have a positive charge.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What did JJ Thomson discover?

Back

JJ Thomson discovered the electron.